#include<stdio.h>
/**
 * Find the maximum total from top to bottom of the triangle below:
 */

/* 2010-03-29 */
int tr[][15] = {
{75},
{95,64},
{17,47,82},
{18,35,87,10},
{20, 4,82,47,65},
{19, 1,23,75, 3,34},
{88, 2,77,73, 7,63,67},
{99,65, 4,28, 6,16,70,92},
{41,41,26,56,83,40,80,70,33},
{41,48,72,33,47,32,37,16,94,29},
{53,71,44,65,25,43,91,52,97,51,14},
{70,11,33,28,77,73,17,78,39,68,17,57},
{91,71,52,38,17,14,91,43,58,50,27,29,48},
{63,66, 4,68,89,53,67,30,73,16,69,87,40,31},
{ 4,62,98,27,23, 9,70,98,73,93,38,53,60, 4,23}};


int main(void)
{
	int i,j;
	for( i=13; i>=0; i--) {
		for( j=0; j <= i+1; j++) {
			if(tr[i+1][j+1] > tr[i+1][j]) {
				tr[i][j] = tr[i+1][j+1] + tr[i][j];
			}
			else {
				tr[i][j] = tr[i+1][j] + tr[i][j];
			}
		}
	}
	printf("%d\n", tr[0][0]);
	return 0;
}
